s,
according as the globe may be devided two waies, either cutting
quite through by the meridian from North to South, as if you
should cut an apple by the eye and the stalke, or cutting it
through the AEquinoctiall, East and West, as one would divide an
apple through the midst, betweene the eye & the stalke. The
former makes two faces, or hemispheares, the East and the West
hemispheare. The latter makes likewise two Hemispheares, the
North and the South. Both suppositions are good, and befitting
the nature of the globe: for as touching such vniversall maps,
wherein the world is represented not in two round faces, but all
in one square plot, the ground wherevpon such descriptions are
founded, is lesse naturall and agreeable to the globe, for it
supposeth the earth to be like a Cylinder (or role of bowling
allies) which imagination, vnlesse it be well qualified, is
vtterly false,[2] and makes all such mappes faulty in the
scituation of places. Wherefore omitting this, we will shew the
description of the two former only, both which are easie to be
done.
[Footnote 2: Of this Hypothesis see _Wrights_ errors of
navigation.]
1 To describe an AEquinoctiall planispheare, draw a circle
(_ACBD_) and inscribe in it two diameters (_AB_) & (_CD_) cutting
each other at right angles, and the whole circle into foure
quadrants: each whereof devide into 90. parts, or degrees. The
line (_AB_) doth fitly represent halfe of the AEquator, as the
line (_CD_) in which the points (_C_) & (_D_) are the two poles,
halfe of the Meridian: for these circles the eye being in a
perpendicular line from the point of concurrence (as in this
projection it is supposed) must needs appeare streight. To draw
the other, which will appeare crooked, doe thus. Lie a rule from
the Pole (_C_) to every tenth or fift degree of the halfe circle
(_ADB_) noting in the AEquator (_AB_) every intersection of it and
the rule. The like doe from the point (_B_) to the semicircle
(_CAD_) noting also the intersections in the Meridian (_CD_) Then
the diameters (_CB_) and (_AB_) being drawne out at both ends, as
farre as may suffice, finding in the line (_DC_) the center of
the tenth division from (_A_) to (_C_) and from (_B_) to (_C_), &
of the first point of intersection noted in the meridian fr[~o]
the AEquator towards (_C_) by a way familiar to Geometricians
connect the three points, and you haue the paralell of 10.
degrees from the AEquator: the like must bee done in
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